They were beaten by neighbours Meath yesterday.
Westmeath will have to wait another year to return to senior level.
They went down by 6 points to neighbours Meath in the All-Ireland Intermediate final yesterday.
It ended there 2-16 to 4-5.
The Royals had lost in the final in the previous two years.
Congratulations to @meathladiesMLGF on winning the All Ireland Intermediate title yesterday and all the very best in the senior ranks next year 🙌🏻
— Westmeath LGFA (@WestmeathLadies) December 21, 2020
Meanwhile,
It was a weekend to remember for Dublin GAA fans.
Less than 24 hours after Dessie Farrell's side beat Mayo the Dubs also claimed the Senior Championship.
They beat Cork on a scoreline of 1-10 to 1-5 at Croke Park yesterday.
Carla Rowe finished up with 1-3 to her name, scoring the goal from the penalty spot in the 35th minute.
It's the second final the Rebels have lost in three years, manager Ephie Fitzgerald said Dublin were simply too strong of an opposition:
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Portlaoise Panthers Suffer Defeat In Women's Super League
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Medals Secured For Ireland At European Cross Country Championships
All Ireland Glory Achieved By Camross
Dublin Lions End Portlaoise Panthers' Perfect Home Record
Success For Camross But Heartbreak For Tubberclair
Portlaoise Panthers Back In Super League Action This Weekend
Camross Name Tomas Burke As New Hurling Manager
Midlands Stars Set For European Cross Country Championships
Laois U20 Hurler And Footballer Of The Year Revealed
Camross Has Nothing To Lose This Weekend - Arien Delaney
Robbie Henshaw Named To Start For Leinster's Champions Cup Clash
Leinster Glory The Target For Tubberclair This Weekend
Portlaoise Panthers Aiming To End Losing Streak
Camross Getting Set For All Ireland Final
Westmeath Boxers Set To Compete At U17 European Championships
Portlaoise Panthers U20s Seal Semi-Final Place In National Cup
Midlands Beko Club Champions Recognised At Croke Park
CCFL: Four Teams Progress In Combined Counties Shield